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What Causes the Fan of a Car Battery Charger to Stop Working?

2 Answers

DiMia

08/27/25 7:49am

The main reasons for the fan of a car battery charger not working are a damaged transistor controlling the fan, a faulty fan itself, or the fan blades being obstructed by debris. However, some chargers use intelligent cooling, and for these types of chargers, the likelihood of a damaged thermistor is high. Below is relevant information about car batteries: 1. The battery is an essential part of a car and can be categorized into traditional lead-acid batteries and maintenance-free batteries. Since lead-calcium alloy is used for the grid frame in these batteries, the amount of water decomposition during charging is minimal, and water evaporation is also low. Additionally, the sealed structure of the casing results in very little sulfuric acid gas release. Compared to traditional batteries, they offer advantages such as no need to add any liquid, long-term power storage, and easy connection to terminal posts. 2. A car battery, also known as a storage battery, is a type of battery that works by converting chemical energy into electrical energy. The commonly referred-to car battery is a lead-acid battery, which is primarily made of lead and its oxides, with an electrolyte of sulfuric acid solution.

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Games

09/09/25 6:33am

I've encountered many similar issues. As someone who frequently tinkers with car accessories, there are several possible reasons why the fan of a car battery charger isn't spinning. The most basic one is a power issue—if the charger plug isn't securely connected or the socket has no power, the fan won't have the energy to spin. Next is the fan motor problem; over time, the motor shaft can rust and seize, or dust buildup can clog the fan blades. A faulty control circuit is another common cause, such as a broken temperature sensor that activates the fan—if it doesn't sense high temperatures, the fan won't start. I recommend first checking the power source to confirm if the charger's indicator light is on. If it's on but the fan still isn't spinning, gently tap the fan to see if it's loose. If that doesn't work, avoid forcing it to prevent the charger from overheating, melting circuits, or causing a fire. If you're unsure, take it to a professional shop—safety first. For regular maintenance, remember to clean dust periodically to extend its lifespan.

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